CN216481766U

CN216481766U - Partition mechanism capable of accumulating cold and refrigerator

Info

Publication number: CN216481766U
Application number: CN202122721757.8U
Authority: CN
Inventors: 刘畅; 朱雪峰; 陈佳弘; 程星光; 焦雯姝; 赵燕清
Original assignee: Gree Electric Appliances Inc of Zhuhai
Current assignee: Gree Electric Appliances Inc of Zhuhai
Priority date: 2021-11-08
Filing date: 2021-11-08
Publication date: 2022-05-10
Anticipated expiration: 2031-11-08

Abstract

The utility model provides a cold storage separating mechanism and a refrigerator, relates to the technical field of refrigerators, and solves the technical problem that in the prior art, when the refrigerator is in an automatic defrosting mode, the temperature fluctuation range of a storage space in the refrigerator is relatively large. The separation mechanism comprises a cold accumulation device and a driving structure, wherein cold accumulation liquid is sealed in the cold accumulation device, the cold accumulation device connected with the driving structure exists, and the cold accumulation device can enable the refrigerator refrigerating system and the storage space to be separated or communicated under the driving of the driving structure. The refrigerator is used for reducing temperature fluctuation of the storage space in the refrigerator, reducing defrosting temperature rise, achieving the effect of accurate temperature control, and effectively improving the food preservation effect of the refrigerator.

Description

Partition mechanism capable of accumulating cold and refrigerator

Technical Field

The utility model relates to the technical field of refrigerators, in particular to a cold storage separation mechanism and a refrigerator.

Background

The refrigerator is a common refrigeration household appliance in modern daily life, is mainly used for storing fresh foods such as fruits, vegetables, meat and the like, and can inhibit the growth and reproduction of microorganisms, reduce the activity of biological enzymes and inhibit the respiration of plants by relying on lower temperature, thereby achieving the purposes of prolonging the fresh-keeping period of the fresh foods and protecting the eating quality of the fresh foods. Depending on the refrigeration method, the household refrigerator can be generally classified into a direct cooling type, an air cooling type and a mixed cooling type. The direct cooling refrigerator generally adopts a plate tube type evaporator, a wire tube type evaporator and a wound tube type evaporator, is stuck outside an inner container of the refrigerator, is used as a shelf of the refrigerator, is wound on the inner container of the refrigerator, and achieves the aim of refrigeration by means of direct contact heat exchange with an object. Due to the low-temperature and high-humidity environment inside the refrigerator, the direct-cooling evaporator frosts at intervals, so that stored articles are bonded, the drawer is prevented from being pushed and pulled, the space in the refrigerator is occupied, the refrigerating efficiency is reduced, and the like. Therefore, the direct-cooling refrigerator needs to be periodically and manually defrosted, which brings great inconvenience to users. The air-cooled refrigerator generally comprises a finned evaporator, a fan, an air duct, a defrosting heating pipe and the like, and the cold energy on the finned evaporator is conveyed to all parts of the refrigerator through the air duct in a cold air mode by means of forced convection of the fan. When a large amount of frost is formed on the evaporator, the defrosting heating pipe can automatically heat the frost and discharge the condensed water out of the tank. Therefore, the air-cooled refrigerator has the advantages of high refrigeration speed, high temperature uniformity and no defrosting.

In the normal working process of the air-cooled refrigerator, the compressor is usually stopped after the temperature is reduced to the preset temperature in the refrigeration stage, and the compressor is started again for refrigeration after the temperature is increased back to the preset temperature, and the operation is repeatedly and circularly carried out. Therefore, a certain range of temperature fluctuation is inevitable in the refrigerator, such as 4 ℃ for cold storage and 2-6 ℃ for actual temperature. The related research shows that the stress reaction of the fruits and vegetables can be caused by the fluctuation of the refrigeration temperature, which is not beneficial to the preservation of the fruits and vegetables; the temperature fluctuation of freezing can induce recrystallization effect, more large ice crystals are generated to damage meat cells, and the preservation of meat is not favorable.

Particularly, in the automatic defrosting process, the heating pipe generates a large amount of heat in a short time, and the temperature in the box is increased sharply, such as from below-18 ℃ in a normal state to above 5 ℃. The drastic fluctuation of temperature may cause the food in a frozen state to be thawed, and to be frozen again in a refrigerating process after defrosting is completed. Such repeated "thaw-freeze-thaw … …" process can result in substantial destruction of the meat cells, resulting in loss of nutrients and deterioration of eating quality.

In addition, since the capacity of air to store heat is much lower than that of liquid, when a user opens and closes the door to access objects, the entry of outside air can also cause the fluctuation of the temperature in the box; when power failure/outage occurs, the temperature rising speed is high due to the fact that no cold accumulation device is arranged in the refrigerator, the time for keeping the refrigerator at low temperature is short, and loss is caused to articles stored at low temperature. In addition, the humidity inside the air-cooled refrigerator is low, so that air drying of fruits and vegetables and drying loss of meat are easily caused, and the fresh-keeping effect of the refrigerator is influenced.

Therefore, the temperature fluctuation is reduced to the maximum extent, the defrosting temperature rise is reduced, the effect of accurate temperature control is achieved, and the food preservation effect of the refrigerator can be effectively improved.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a cold storage separating mechanism and a refrigerator, and solves the technical problem that the temperature fluctuation range of a storage space in the refrigerator is relatively large when the refrigerator is in an automatic defrosting mode in the prior art. The technical effects that can be produced by the preferred technical scheme in the technical schemes provided by the utility model are described in detail in the following.

In order to achieve the purpose, the utility model provides the following technical scheme:

the utility model provides a cold-storage separation mechanism which comprises a cold storage device and a driving structure, wherein cold storage liquid is sealed in the cold storage device, the cold storage device connected with the driving structure is arranged, and the cold storage device can separate or communicate a refrigerator refrigerating system from or with a storage space under the driving of the driving structure.

Further, the refrigerator comprises an air duct structure, an air port is formed in the air duct structure, an evaporator is arranged on the rear side of the air duct structure, and the cold storage device is located in an area between the evaporator and the air duct structure.

Further, the shape of the cold storage device is a flat plate-shaped structure.

Further, the driving structure is directly connected with the corresponding cold accumulation device; or the driving structure comprises a driving device and a transmission mechanism, and the driving device is connected with the corresponding cold accumulation device through the transmission mechanism.

Furthermore, the transmission mechanism is a gear rack transmission mechanism, and the driving device can drive the corresponding cold accumulation device to move along the horizontal direction or the vertical direction through the transmission mechanism.

Furthermore, the cold accumulation devices are mobile cold accumulation devices, the two mobile cold accumulation devices are arranged side by side along the horizontal direction, and the two mobile cold accumulation devices can move towards the direction far away from each other under the driving of the driving device and the transmission mechanism so as to separate the refrigerating system of the refrigerator freezing chamber from the storage space.

Further, drive mechanism includes gear, first rack and second rack, drive arrangement is driving motor, drive arrangement's output shaft is vertical set up and with the gear is connected, first rack with the second rack sets up the both sides of gear and all with the gear meshes mutually, first rack with the second rack respectively with correspond the cold-storage device is connected.

Further, the bottom of the movable cold accumulation device is provided with a roller.

Further, the cold accumulation device is a fixed cold accumulation device, the fixed cold accumulation device is arranged at the rear side of the movable cold accumulation device, and the air ports of the air duct structure are positioned at the left side and the right side of the fixed cold accumulation device.

Furthermore, the plurality of cold accumulation devices are sequentially distributed along the height direction of the refrigerator, each cold accumulation device corresponds to a row of air ports distributed along the horizontal direction, and the refrigerator refrigerating system and the storage space are separated or communicated by the upward and downward movement of the cold accumulation devices.

The utility model provides a refrigerator which comprises a cold-storage separating mechanism, wherein an air opening of a refrigerating chamber of the refrigerator is correspondingly provided with the cold-storage separating mechanism and/or an air opening of a freezing chamber of the refrigerator is correspondingly provided with an air opening adjusting mechanism.

The utility model provides a cold-storage separation mechanism which comprises a cold storage device and a driving structure, wherein cold storage liquid is sealed in the cold storage device, the cold storage device connected with the driving structure exists, and the cold storage device can enable a refrigerator refrigerating system and a storage space to be separated and communicated under the driving of the driving structure. Before the refrigerator is about to enter into automatic defrosting, the cold accumulation device is moved to the front of an air port, a refrigerator evaporator, a defrosting heating pipe and a channel in the refrigerator are isolated, and the aim of inhibiting defrosting temperature rise is fulfilled; after the defrosting process is finished, the refrigerator recovers the refrigerating process, when the evaporator recovers to be close to the temperature before defrosting, the cold accumulation device moves to the initial position, the air port is opened, and the refrigerator enters a normal working state. In addition, the cold accumulation device is arranged in the refrigerator, cold energy is absorbed in the refrigeration process of the refrigerator, the cold energy is released in the shutdown process, and the effect of inhibiting temperature fluctuation in the shutdown process is achieved. When a user opens and closes the door to store and take articles or the power is cut off, the cold storage device can release the stored cold energy and reduce the fluctuation of the temperature in the refrigerator. When a user opens and closes the door to store and take articles, external hot air enters the refrigerator, and moisture in the hot air is condensed near the cold accumulation device, so that the aim of supplementing moisture to the inside of the refrigerator is fulfilled, and the fresh-keeping effect of the refrigerator is improved.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

Fig. 1 is a schematic longitudinal sectional view of a refrigerator according to an embodiment of the present invention;

fig. 2 is a schematic cross-sectional view of a refrigerator according to an embodiment of the present invention (the movable cold storage device opens the air port);

fig. 3 is a schematic diagram of a transverse cross-sectional view of a refrigerator provided by an embodiment of the utility model (the air opening is closed by a movable cold storage device);

FIG. 4 is a schematic structural diagram of the connection between the transmission mechanism and the mobile cold accumulation device provided by the embodiment of the utility model;

FIG. 5 is an exploded view of the driving mechanism and the mobile cold storage device according to the embodiment of the present invention;

fig. 6 is a schematic diagram of a longitudinal sectional view of a refrigerator provided in an embodiment of the present invention (the cold storage devices are sequentially arranged in a height direction and the air opening of the cold storage device is opened);

fig. 7 is a schematic diagram of a longitudinal sectional view of a refrigerator according to an embodiment of the present invention (the cold storage devices are sequentially arranged in a height direction and the air opening of the cold storage device is opened);

fig. 8 is a flowchart of controlling temperature of a refrigerator by using an air opening adjusting mechanism according to an embodiment of the present invention.

FIG. 1-cold storage device; 11-mobile cold storage device; 12-a stationary cold storage device; 13-a roller; 2-a drive device; 3-a transmission mechanism; 31-a gear; 32-a first rack; 33-a second rack; 4-tuyere; 41-air outlet; 42-air return; 5-an evaporator; 6-defrosting heater; 7-a box body; 8-a door body; 9-fan.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the technical solutions of the present invention will be described in detail below. It is to be understood that the described embodiments are merely exemplary of the utility model, and not restrictive of the full scope of the utility model. All other embodiments, which can be derived by a person skilled in the art from the examples given herein without any inventive step, are within the scope of the present invention.

The utility model provides a separating mechanism capable of accumulating cold, which comprises a cold accumulation device 1 and a driving structure, wherein cold accumulation liquid is sealed in the cold accumulation device 1, the cold accumulation device 1 connected with the driving structure exists, and the cold accumulation device 1 can separate or communicate a refrigerator refrigerating system from or with a storage space under the driving of the driving structure. Before the refrigerator enters automatic defrosting, the cold accumulation device 1 is moved to the front of an air opening 4, a refrigerator evaporator 5 and a defrosting heating pipe 6 are separated from a channel in the refrigerator, and the aim of inhibiting defrosting temperature rise is fulfilled; after the defrosting process is finished, the refrigerator recovers the refrigerating process, when the evaporator 5 recovers to be close to the temperature before defrosting, the cold accumulation device 1 moves to the initial position, the air port 4 is opened, and the refrigerator enters a normal working state. In addition, the cold accumulation device 1 is arranged in the refrigerator, and absorbs cold energy in the refrigeration process of the refrigerator, releases the cold energy in the shutdown process, and achieves the effect of inhibiting temperature fluctuation in the shutdown process. When a user opens and closes the door to store and take articles or the power is cut off, the cold storage device can release the stored cold energy and reduce the fluctuation of the temperature in the refrigerator. When a user opens and closes the door to store and take articles, external hot air enters the refrigerator, and moisture in the hot air is condensed near the cold accumulation device, so that the aim of supplementing moisture to the inside of the refrigerator is fulfilled, and the fresh-keeping effect of the refrigerator is improved.

The cold accumulation liquid can be a mixed aqueous solution of ethanol and sodium chloride (such as an aqueous solution prepared from 47.8 percent of ethanol and 11.8 percent of sodium chloride by mass percent), can keep a good flowing state without freezing under a low temperature condition (such as minus 50 ℃), is safe and nontoxic, has strong cold accumulation capacity and low price, and can be used as a good cold accumulation liquid.

As an alternative embodiment, the refrigerator includes an air duct structure, the air opening 4 is disposed on the air duct structure, the evaporator 5 is disposed at the rear side of the air duct structure, and the cold storage device 1 is located in the area between the evaporator 5 and the air duct structure. Referring to fig. 1-3, the position of the cold storage device 1 is illustrated; of course, the cold storage device 1 may be provided on the front side of the tuyere 4. In view of space limitation, it is preferable that the shape of the cold storage device 1 is a flat plate-like knot. Referring to fig. 4, the cold accumulation device 1 is shown, the cold accumulation device 1 is externally provided with a closed flat container, and the inner cavity of the cold accumulation device 1 is filled with cold accumulation liquid and sealed by a sealing cover. Regarding the thickness of cold storage device 1, the thickness greatly affects the volume of the refrigerator or reduces the effective volume of the storage space of the refrigerator, but the heat blocking property is better, so that the thickness of cold storage device 1 needs to be set reasonably according to actual conditions.

As an alternative embodiment, the driving structure can be directly connected with the corresponding cold accumulation device 1, and the driving structure is a driving cylinder; or the driving structure comprises a driving device 2 and a transmission mechanism 3, and the driving device 2 is connected with the corresponding cold accumulation device 1 through the transmission mechanism 3. The transmission mechanism 3 is preferably a gear rack transmission mechanism, the driving device 2 is a motor, and the driving device 2 can drive the corresponding cold accumulation device 1 to move along the horizontal direction or the vertical direction through the transmission mechanism 3. Of course, the transmission mechanism 3 may be another transmission mechanism such as a screw mechanism.

Example 1:

the utility model provides a separating mechanism capable of accumulating cold, which comprises a cold accumulation device 1 and a driving structure, wherein cold accumulation liquid is sealed in the cold accumulation device 1, the cold accumulation device 1 connected with the driving structure exists, and the cold accumulation device 1 can separate or communicate a refrigerator refrigerating system from or with a storage space under the driving of the driving structure. The cold accumulation liquid can be a mixed aqueous solution of ethanol and sodium chloride (such as an aqueous solution prepared from 47.8 percent of ethanol and 11.8 percent of sodium chloride by mass percent), can keep a good flowing state without freezing under a low temperature condition (such as minus 50 ℃), is safe and nontoxic, has strong cold accumulation capacity and low price, and can be used as a good cold accumulation liquid.

The refrigerator comprises an air duct structure, an air opening 4 is arranged on the air duct structure, an evaporator 5 is arranged on the rear side of the air duct structure, and the cold accumulation device 1 is located in an area between the evaporator 5 and the air duct structure.

The driving structure comprises a driving device 2 and a transmission mechanism 3, the driving device 2 is connected with the corresponding cold accumulation device 1 through the transmission mechanism 3, and the transmission mechanism 3 is a gear rack transmission mechanism. Specifically, referring to fig. 4, there are cold accumulation devices 1 as mobile cold accumulation devices 11, two mobile cold accumulation devices 11 are arranged side by side along the horizontal direction, and under the driving of the driving device 2 and the transmission mechanism 3, the two mobile cold accumulation devices 11 can move towards the direction far away from each other to realize the closing of all air ports 4 in the refrigerator freezing chamber. Referring to fig. 5, the transmission mechanism 3 includes a gear 31, a first rack 32 and a second rack 33, the driving device 2 is a driving motor, an output shaft of the driving device 2 is vertically disposed and connected with the gear 31, the first rack 32 and the second rack 33 are disposed on two sides of the gear 31 and are both engaged with the gear 31, the first rack 32 and the second rack 33 are respectively connected with the corresponding cold storage devices 1, referring to fig. 5, it is shown that the first rack 32 is connected with the left mobile cold storage device 11, the second rack 33 is connected with the right mobile cold storage device 11, in order to ensure the stability of the rack-and-pinion engagement, the left section of the first rack 32 is fixed in the groove of the left mobile cold storage device 11, the right section of the first rack 32 is inserted in the groove of the right mobile cold storage device 11, and similarly, the oil side section of the second rack 33 is fixed in the groove of the right mobile cold storage device 11, The left section of the second rack 33 is inserted into the groove of the left mobile cold storage device 11. When the driving device 2 rotates forwards, the two movable cold accumulation devices 11 move towards the directions far away from each other respectively; when the driving device 2 is reversed, the two movable cold storage devices 11 are moved toward the middle.

As can be seen from fig. 1 and fig. 2, four air ports 4 are distributed in the same height direction, three air ports 4 at the upper part are air outlets 41, one air port 4 at the lower part is a return air port 42, and two air ports 4 are distributed along the same horizontal plane, which is shown in fig. 2, that two movable cold accumulation devices 11 are located between two vertical air ports 4 and at the position where the air ports 4 are opened; referring to fig. 3, it is shown that the two movable cold storage devices 11 are located at positions for closing the air openings 4, the left movable cold storage device 11 closes the air opening 4 in the left vertical row, and the right movable cold storage device 11 closes the air opening 4 in the right vertical row, so as to block the evaporator 5, the defrosting heating pipe 6 and the passage inside the refrigerator.

As an alternative embodiment, referring to fig. 4, the bottom of the mobile cold-storage device 11 is provided with a roller 13, and when the driving device 2 and the transmission mechanism 3 drive the mobile cold-storage device 11 to move, the roller 13 rolls. The rollers 13 function to support the mobile cold storage device 11.

As an alternative embodiment, the cold storage device 1 is a stationary cold storage device 12, the stationary cold storage device 12 is disposed at the rear side of the mobile cold storage device 11, and the air vents 4 are located at the left and right sides of the stationary cold storage device 12. Referring to fig. 1-3, the stationary cold storage device 12 is illustrated with the stationary cold storage device 12 in place. The provision of the fixed cold storage device 12 increases the effect of blocking heat.

When the refrigerator is in a normal working state, the position of the cold accumulation device is shown in figure 2, the evaporator 5 is cooled down violently when the refrigerator refrigerates, and the cold accumulation device 1 absorbs the cold energy of the evaporator 5 efficiently to avoid the temperature of the storage space in the refrigerator from dropping violently; when the refrigerator reaches a preset low temperature and the compressor stops, the cold accumulation device 1 releases cold energy to avoid the temperature of the storage space in the refrigerator from being severely reduced. Therefore, the effect of restraining temperature fluctuation in the startup and shutdown process is achieved.

Before the refrigerator is about to enter into an automatic defrosting state, the driving device 2 and the transmission mechanism 3 move the left movable cold accumulation device 11 to the left in front of the left air outlet 11 and the left air return opening 12, and move the right movable cold accumulation device 11 to the right in front of the right air outlet 11 and the left air return opening 12, so that the evaporator 5 and the defrosting heating pipe 6 are separated from a channel in the refrigerator, and the aim of inhibiting the temperature rise of a storage space of the defrosting refrigerator is fulfilled. After the automatic defrosting is finished, the refrigerating system of the refrigerator recovers refrigeration, the ambient temperature around the evaporator 5 begins to drop, when the temperature drops to a preset value (such as-18 ℃), the driving device 2 drives the movable cold accumulation device 11 to move and reset, the air outlet 11 and the air return opening 12 are opened again, and the storage space of the refrigerator recovers refrigeration.

Example 2:

referring to fig. 6-7, the utility model provides a separation mechanism capable of accumulating cold, comprising a cold accumulation device 1 and a driving structure, wherein, a cold accumulation liquid is sealed in the cold accumulation device 1, the cold accumulation device 1 connected with the driving structure exists, and the cold accumulation device 1 can separate or communicate a refrigerator refrigeration system and a storage space under the driving of the driving structure.

The refrigerator comprises an air duct, an air port 4 is arranged on the air duct, an evaporator 5 is arranged on the rear side of the air duct, and the cold accumulation device 1 is located in an area between the evaporator 5 and the air duct.

The cold accumulation devices 1 are sequentially distributed along the height direction of the refrigerator, each cold accumulation device 1 corresponds to a row of air ports 4 distributed along the horizontal direction, and the air ports 4 are opened and closed by moving the cold accumulation devices 1 up and down under the driving of the driving structure. The drive structure may be a motor and lead screw structure. Referring to fig. 6, the tuyere 4 is illustrated in an opened state, and referring to fig. 7, the tuyere 4 is illustrated in a closed state.

Example 3:

a refrigerator comprises the cold-storage separation mechanism described in embodiment 1 or embodiment 2, wherein the separation mechanism is arranged corresponding to an air opening 4 of a refrigerating chamber of the refrigerator and/or the separation mechanism is arranged corresponding to an air opening 4 of a freezing chamber of the refrigerator. Referring to fig. 1-3 and 6-7, it is shown that the partition mechanism is arranged corresponding to the air opening 4 of the freezer compartment of the refrigerator. Before the refrigerator is about to enter into the automatic defrosting state, the corresponding cold accumulation device 1 is moved to the front of the air opening 4 through the driving structure, so that the evaporator 5, the defrosting heating pipe 6 and a channel inside the refrigerator are separated, and the aim of inhibiting the temperature rise of the storage space of the defrosting refrigerator is fulfilled. After the automatic defrosting is finished, the refrigerating system of the refrigerator recovers refrigerating, the ambient temperature around the evaporator 5 begins to drop, when the temperature drops to a preset value (such as-18 ℃), the driving structure drives the cold accumulation device 1 to move and reset, the air outlet 11 and the air return opening 12 are opened again, and the storage space of the refrigerator recovers refrigerating.

Example 4:

a method for controlling the temperature of a refrigerator by utilizing a cold-storage separation mechanism comprises the following steps: when the refrigerator is in a defrosting mode, the driving structure acts to move the corresponding cold accumulation device 1 to a position for shielding an air port 4 of a freezing chamber of the refrigerator, so that the evaporator 5 and the defrosting heating pipe 6 are isolated from a channel in the refrigerator, and the aim of inhibiting the temperature rise of a storage space of the defrosting refrigerator is fulfilled; when the defrosting mode of the refrigerator is finished and the temperature of the refrigerator evaporator 5 is reduced by a set value, the driving structure acts to move the cold accumulation device 1 to open the air opening 4, and the storage space of the refrigerator recovers refrigeration. The driving structure comprises a driving device 2 and a transmission mechanism 3, the driving device 2 is connected with the corresponding cold accumulation device 1 through the transmission mechanism 3, the transmission mechanism 3 is preferably a gear rack transmission mechanism, and the driving device 2 is a motor.

The specific flow process of temperature control is as follows:

referring to fig. 8, the control system of the refrigerator judges whether the door 8 of the refrigerator is in a closed state, and when the door 8 of the refrigerator is judged to be in an open state, the motor does not act, and the position of the cold accumulation device 1 connected with the motor does not change; when the door body 8 of the refrigerator is judged to be in a closed state, whether the refrigerator enters a defrosting mode is judged, and when the refrigerator is judged not to enter the defrosting mode, the motor does not act, and the position of the cold accumulation device 1 connected with the motor is not changed; when the refrigerator is judged to enter the defrosting mode, the motor acts to drive the cold accumulation device 1 connected with the motor to move to a position for shielding the air opening 4; and after the defrosting process is finished, the refrigerator recovers the refrigeration mode, whether the ambient temperature of the refrigerator evaporator 5 recovers to a preset temperature value is judged, if the ambient temperature of the refrigerator evaporator 5 does not recover to the preset temperature value, the motor does not act, the position of the cold accumulation device 1 connected with the motor does not change, the air port 4 is in a closed state, and when the ambient temperature of the refrigerator evaporator 5 is judged to recover to the preset temperature value, the motor acts to drive the cold accumulation device 1 connected with the motor to move to the position for opening the air port 4.

The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present invention, and all the changes or substitutions should be covered within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the appended claims.

Claims

1. A cold-storage separation mechanism is characterized by comprising a cold storage device (1) and a driving structure, wherein,

the cold accumulation device (1) is internally sealed with cold accumulation liquid, the cold accumulation device (1) connected with the driving structure is arranged, and the cold accumulation device (1) can enable the refrigerator refrigeration system and the storage space to be separated or communicated under the driving of the driving structure.

2. Partition mechanism for cold accumulation according to claim 1, characterized in that the refrigerator comprises an air duct structure, on which the air opening (4) is provided, and on the rear side of which the evaporator (5) is provided, the cold accumulation device (1) being located in the area between the evaporator (5) and the air duct structure.

3. Cold-storable partition mechanism according to claim 1, characterized in that the cold-storage device (1) is shaped as a flat plate-like structure.

4. Partition mechanism for cold accumulation according to any of claims 1-3, characterized in that the driving structure is directly connected with the corresponding cold accumulation device (1); or the driving structure comprises a driving device (2) and a transmission mechanism (3), and the driving device (2) is connected with the corresponding cold accumulation device (1) through the transmission mechanism (3).

5. The cold-storage separating mechanism according to claim 4, wherein the transmission mechanism (3) is a rack-and-pinion transmission mechanism, and the driving device (2) can drive the corresponding cold-storage device (1) to move along the horizontal direction or the vertical direction through the transmission mechanism (3).

6. The cold-storage separation mechanism according to claim 5, wherein the cold-storage device (1) is a mobile cold-storage device (11), two mobile cold-storage devices (11) are arranged side by side along the horizontal direction, and the two mobile cold-storage devices (11) can move in the direction away from each other under the drive of the driving device (2) and the transmission mechanism (3) to separate the refrigerating system and the storage space in the refrigerator freezing chamber.

7. The cold-storage separating mechanism according to claim 6, wherein the transmission mechanism (3) comprises a gear (31), a first rack (32) and a second rack (33), the driving device (2) is a driving motor, an output shaft of the driving device (2) is vertically arranged and connected with the gear (31), the first rack (32) and the second rack (33) are arranged on two sides of the gear (31) and are respectively meshed with the gear (31), and the first rack (32) and the second rack (33) are respectively connected with the corresponding cold storage device (1).

8. Cold-storable partition according to claim 6, characterised in that the bottom of the mobile cold-storage device (11) is provided with rollers (13).

9. Partition mechanism for cold accumulation according to claim 4, characterized in that there is a stationary cold accumulation device (12) for the cold accumulation device (1), the stationary cold accumulation device (12) being arranged at the rear side of the mobile cold accumulation device (11), the air vents (4) of the air duct structure being located at the left and right sides of the stationary cold accumulation device (12).

10. The cold-storage separation mechanism according to claim 4, wherein a plurality of cold-storage devices (1) are sequentially distributed along the height direction of the refrigerator, each cold-storage device (1) corresponds to a row of air ports (4) distributed along the horizontal direction, and the separation or communication between the refrigerator refrigeration system and the storage space is realized by the upward and downward movement of the cold-storage devices (1).

11. A refrigerator characterized in that it comprises a cold-storage separating mechanism as claimed in any one of claims 1 to 10, said cold-storage separating mechanism being arranged in correspondence of the tuyere (4) of the refrigerating compartment of the refrigerator and/or said cold-storage separating mechanism being arranged in correspondence of the tuyere (4) of the freezing compartment of the refrigerator.